Pneumatic Piston Assembly; Air Valve - avdel 71224 Manual De Instrucciones

S e r v i c i n g t h e To o l
P n e u m a t i c P i s t o n A s s e m b l y
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Remove 'ON/OFF' Valve Assembly 62.
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Clamp the body of the inverted tool ACROSS THE AIR INLET BOSSES in a vice fitted with soft jaws.
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Pull off Rubber Boot 48.
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Using the peg spanner* unscrew Base Cover 31.
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Unscrew Nyloc Nuts 67 (2 off) and remove Base Plate Assembly 65.
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Remove Cylinder Liner 37 together with Sealing Washers 29 (2 off) and 'O' Rings 66 (2 off).
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Remove Pneumatic Piston Assembly 57 together with 'O' Ring 75, Lip Seal 90 (3 off) and Guide Ring 51.
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Engage the Seal Extractor* into Seal Assembly 60 and withdraw Seal Assembly from intensifier tube of the Head Assembly 58.
Assemble in reverse order to dismantling.
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Seals should be checked for damage and replaced as necessary. Lubricate pneumatic seals with Molykote
Molykote ® 111.
A i r Va l v e
Dismantling
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Remove Pneumatic Piston Assembly 57 as described above in Pneumatic Piston Assembly.
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Using Spanner (07900-00672), and Location Spigot Assembly (07900-00706). Unscrew Clamp Nut 39 and remove together with Top
Plate Assembly 44 together with Tie Rods 56, Transfer Tube Assembly 61, 'O' Rings 14 and Silencer Pads 53.
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Remove tool from vice and separate Body 30 from Handle 64. Remove 'O' Ring 17.
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Push out the Valve Seat 34, from the Body 30, together with 'O' Rings 14.
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Pull out Valve Spool Assembly 59 from Handle 64. Remove 'O' Ring 7 from handle counterbore.
Assembly
Assemble in reverse order to Dismantling Instructions
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Seals should be checked for damage and replaced if necessary, lubricated with Molykote
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Apply Loctite ® 243 to Clamp Nut 39 and tighten to torque 11ftlb (14.91 Nm).
Priming is ALWAYS necessary after the tool has been dismantled and prior to operating.
* Item included in the nG3 Service Kit. For complete list see page 20.
Item numbers in bold refer to the general assembly drawing and parts list on pages 24 and 25.
22
I M P O R T A N T
Check the tool against daily and weekly servicing.
®
55m and hydraulic seals with
®
55m grease.